@import url('https://fonts.googleapis.com/css2?family=Oswald:wght@500;600;700&display=swap');

:root {
  color-scheme: light;
  --bg: #f6f7fb;
  --fg: #10192b;
  --muted: #5c6577;
  --card-bg: #ffffff;
  --border: #dde1ea;
  --black: #0b2545;
  --gold: #c9a227;
  --gold-deep: #a1801c;
  --gold-bg: #f6efd6;
  --shadow: 0 1px 3px rgba(11, 37, 69, 0.1);
  /* Text sitting on a gold surface (buttons, step badges) always uses this fixed navy — gold
     stays a light color, so its text should never invert to light. Same value as --black here,
     kept as its own variable so it won't drift if --black's role changes later. */
  --ink-on-gold: #0b2545;
}

/* Deliberately no prefers-color-scheme: dark override — the white/navy/gold look is the one,
   fixed brand appearance for this site, not something that should change with device settings. */

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.55;
}

h1, h2, h3, .brand__wordmark, .btn, .site-nav a {
  font-family: "Oswald", "Segoe UI", Arial, sans-serif;
  letter-spacing: 0.01em;
}

a { color: var(--gold-deep); }
@media (prefers-color-scheme: dark) { a { color: var(--gold); } }

/* ---- Site chrome: header ---- */
.site-header {
  border-bottom: 1px solid var(--border);
  background: var(--card-bg);
}

.site-header__inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 0.85rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--fg);
}

.brand__logo {
  height: 34px;
  width: 34px;
  display: block;
}

.brand__wordmark {
  font-weight: 600;
  font-size: 1.15rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--fg);
}

.brand__wordmark span { color: var(--gold-deep); }
@media (prefers-color-scheme: dark) { .brand__wordmark span { color: var(--gold); } }

.site-nav { display: flex; gap: 1.25rem; }

.site-nav a {
  text-decoration: none;
  color: var(--fg);
  font-weight: 500;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.site-nav a:hover { color: var(--gold-deep); }
@media (prefers-color-scheme: dark) { .site-nav a:hover { color: var(--gold); } }

/* ---- Site chrome: footer ---- */
.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 3rem;
}

.site-footer__inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 2.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  align-items: center;
  justify-content: space-between;
  color: var(--muted);
  font-size: 0.85rem;
}

.site-footer__links { display: flex; gap: 1.1rem; flex-wrap: wrap; }
.site-footer__links a { color: var(--muted); text-decoration: none; }
.site-footer__links a:hover { color: var(--gold-deep); }
@media (prefers-color-scheme: dark) { .site-footer__links a:hover { color: var(--gold); } }

/* ---- Layout shells ---- */
.page {
  max-width: 640px;
  margin: 0 auto;
  padding: 2rem 1.25rem 3rem;
}

.page--wide { max-width: 860px; }

.page__header h1 {
  font-size: 1.9rem;
  margin: 0 0 0.5rem;
  color: var(--black);
}

.page__intro {
  color: var(--muted);
  margin: 0 0 1.5rem;
}

/* ---- Hero (home page) ---- */
.hero {
  max-width: 720px;
  margin: 0 auto;
  padding: 3rem 1.25rem 2.5rem;
  text-align: center;
}

.hero h1 {
  font-size: 2.4rem;
  line-height: 1.15;
  margin: 0 0 1rem;
  color: var(--black);
}

.hero p {
  color: var(--muted);
  font-size: 1.05rem;
  max-width: 560px;
  margin: 0 auto 1.75rem;
}

.btn {
  display: inline-block;
  background: var(--black);
  color: var(--bg);
  text-decoration: none;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding: 0.85rem 1.75rem;
  border-radius: 8px;
  border: 2px solid var(--black);
  transition: background 0.15s ease, color 0.15s ease;
}

.btn:hover { background: transparent; color: var(--black); }

.btn--gold {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--ink-on-gold);
}

.btn--gold:hover { background: transparent; color: var(--gold-deep); }

/* ---- How-it-works ---- */
.steps {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 1.25rem 3rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

@media (max-width: 640px) {
  .steps { grid-template-columns: 1fr; }
}

.step {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.4rem;
  box-shadow: var(--shadow);
}

.step__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--gold);
  color: var(--ink-on-gold);
  font-weight: 700;
  font-family: "Oswald", sans-serif;
  margin-bottom: 0.75rem;
}

.step h3 {
  margin: 0 0 0.4rem;
  font-size: 1.05rem;
  color: var(--black);
}

.step p { margin: 0; color: var(--muted); font-size: 0.92rem; }

.trust {
  max-width: 640px;
  margin: 0 auto;
  padding: 0 1.25rem 2.5rem;
  color: var(--muted);
  text-align: center;
}

.trust-note {
  max-width: 640px;
  margin: 0 auto;
  padding: 0 1.25rem 2.5rem;
  text-align: center;
  font-size: 0.85rem;
  color: var(--muted);
}

/* ---- Calculator ---- */
.price-badge {
  background: var(--gold-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
}

.price-badge__spot {
  font-weight: 600;
  color: var(--gold-deep);
}
@media (prefers-color-scheme: dark) { .price-badge__spot { color: var(--gold); } }

.price-badge__meta {
  display: block;
  color: var(--muted);
  font-weight: 400;
  font-size: 0.8rem;
  margin-top: 0.15rem;
}

/* ---- Price table (gold-price-calculator) ---- */
.price-table {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.4rem 1.5rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow);
}

.price-table h2 {
  margin: 0 0 0.85rem;
  font-size: 1.1rem;
  color: var(--black);
}

.price-table table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

.price-table th, .price-table td {
  text-align: left;
  padding: 0.45rem 0.5rem;
  border-bottom: 1px solid var(--border);
}

.price-table th {
  color: var(--muted);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.03em;
}

.price-table td:last-child, .price-table th:last-child { text-align: right; }

.price-table__oz {
  margin: 0.9rem 0 0;
  font-size: 0.88rem;
  color: var(--muted);
}

.price-table__oz strong { color: var(--gold-deep); }

.calculator {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: var(--shadow);
}

.calculator__heading {
  margin: 0 0 1.1rem;
  font-size: 1.05rem;
  color: var(--black);
}

.formula-breakdown {
  margin: 0.75rem 0 0;
  text-align: center;
  font-size: 0.78rem;
  color: var(--muted);
  font-family: "Courier New", Courier, monospace;
  word-break: break-word;
}

/* ---- Fineness reference (gold-melt-value-calculator) ---- */
.fineness-ref {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.4rem 1.5rem;
  margin-top: 1.5rem;
  box-shadow: var(--shadow);
}

.fineness-ref h2 {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
  color: var(--black);
}

.fineness-ref p { margin: 0 0 0.9rem; color: var(--fg); font-size: 0.9rem; }

.fineness-ref table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

.fineness-ref th, .fineness-ref td {
  text-align: left;
  padding: 0.4rem 0.5rem;
  border-bottom: 1px solid var(--border);
}

.fineness-ref th {
  color: var(--muted);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.03em;
}

.field { margin-bottom: 1.1rem; }

.field label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 0.35rem;
}

.field__row { display: flex; gap: 0.5rem; }

input[type="number"], select {
  font-size: 1rem;
  padding: 0.55rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--fg);
  width: 100%;
}

.field__row input[type="number"] { flex: 1 1 auto; }
.field__row select { flex: 1 1 auto; max-width: 55%; }

.result {
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px dashed var(--border);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.result__label {
  color: var(--muted);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.result__value {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--gold-deep);
  margin-top: 0.15rem;
  font-family: "Oswald", sans-serif;
}
@media (prefers-color-scheme: dark) { .result__value { color: var(--gold); } }

/* ---- Sell CTA (scrap-gold-calculator) ---- */
.sell-cta {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.4rem 1.5rem;
  margin-top: 1.5rem;
  box-shadow: var(--shadow);
}

.sell-cta h2 {
  margin: 0 0 0.5rem;
  font-size: 1.15rem;
  color: var(--black);
}

.sell-cta p { margin: 0 0 0.75rem; color: var(--fg); font-size: 0.92rem; }

.sell-cta__list {
  margin: 0 0 0.9rem;
  padding-left: 1.2rem;
}

.sell-cta__list li { margin-bottom: 0.4rem; font-size: 0.92rem; color: var(--fg); }

.sell-cta__list a { color: var(--gold-deep); font-weight: 600; text-decoration: none; }
.sell-cta__list a:hover { text-decoration: underline; }
@media (prefers-color-scheme: dark) { .sell-cta__list a { color: var(--gold); } }

.sell-cta__note { color: var(--muted); font-size: 0.8rem; margin: 0; }

.disclaimer {
  color: var(--muted);
  font-size: 0.8rem;
  margin-top: 1.5rem;
}

/* ---- Legal / prose pages ---- */
.prose h2 {
  font-size: 1.15rem;
  margin: 1.75rem 0 0.5rem;
  color: var(--black);
}

.prose p, .prose li { color: var(--fg); font-size: 0.95rem; }
.prose ul { padding-left: 1.2rem; }
.prose .updated { color: var(--muted); font-size: 0.85rem; margin-top: -0.5rem; }